JimR1998
Well-known member
Does anyone have experience using geofoam in a small residential application?
I'm considering raising the floor height of a hollow block building about 3 feet. Conventional method is breaking up slab, fill and compact in lifts. The wall section, since it's hollow and unreinforced, needs to be taken down and rebuilt or something else done so it doesn't blow out with the weight of the fill and compaction.
geofoam, basically giant blocks of EPS foam, can be carried by hand and laid directly on the existing slab without concern of lateral forces on the wall. Concrete goes directly on top.
I may also be able to use the product for a driveway incline and not need to worry about retaining walls on the sides.
Contractor said he was a site where it was being used and might be something to look into. It runs about $50/yd, more expensive than fill but less labor to install and possibly cheaper in the long run.
If it exists, I figure someone here must have used it before!
I'm considering raising the floor height of a hollow block building about 3 feet. Conventional method is breaking up slab, fill and compact in lifts. The wall section, since it's hollow and unreinforced, needs to be taken down and rebuilt or something else done so it doesn't blow out with the weight of the fill and compaction.
geofoam, basically giant blocks of EPS foam, can be carried by hand and laid directly on the existing slab without concern of lateral forces on the wall. Concrete goes directly on top.
I may also be able to use the product for a driveway incline and not need to worry about retaining walls on the sides.
Contractor said he was a site where it was being used and might be something to look into. It runs about $50/yd, more expensive than fill but less labor to install and possibly cheaper in the long run.
If it exists, I figure someone here must have used it before!